International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 07 Issue: 03 | Mar 2020
p-ISSN: 2395-0072
www.irjet.net
Performance of Self Compacting Concrete with Replacement of Granite Powder as Fine Aggregate R. Elavarasan*¹, S. Aadhithya², K. Akila³, P. Amarthyasen4, M. Bhavadharani5 1 Assistant professor, Dept. of Civil Engineering, Vivekanandha college of Technology for women, Tamilnadu, India 2,3,4 UG Students, Dept. of Civil Engineering , Vivekanandha college of Technology for women, Tamilnadu, India ---------------------------------------------------------------------***----------------------------------------------------------------------
Abstract - Concrete is the most predominantly used
Key Words: Granite Powder, Self-Compacting Concrete, Compressive Strength, Spilt Tensile Strength, Flexural Strength.
construction material in the world. The main binding ingredient of concrete that is ordinary Portland cement is a major contributor to global warming. The cement industry is the second-largest producer of greenhouse gas. The total world production of cement is expected to be around 4800 Mt by 2030, which indicates the like impact on global warming indicates. In this regard, Utilization of industrial by-products from various industries as a supplementary cementitious material in concrete along with cement has been well recognized for its enhanced properties and potential to reduce environmental impacts. Most of the works on Granite powder based Self Compacting Concrete (SCC) reveals that hardening is due to heat curing. Recent studies on the various properties of heat-cured have shown its suitability for applications such as precast concrete members. The heat curing process requires special arrangements, which is energy consuming and may not be feasible to apply in cast-in-situ concreting. Therefore, the development of self-compacting concrete suitable for curing at ambient temperature will widen its application to concrete structures.
1. INTRODUCTION Concrete is a composite construction material, composed of cement (commonly Portland cement) and other cementitious materials such as fly ash and slag cement, aggregate generally a coarse aggregate made of gravels or crushed rocks such as limestone, or granite, plus a fine aggregate such as sand, water, and chemical admixtures. Unlike the conventional concrete, selfcompacting concrete doesn't require compacting using external force from mechanical equipment such as an immersion vibrator; instead SCC is designed in such as way that it gets compacted using its own weight and characteristics. Once applied, the self-compacting property enables the concrete to fully reinforce around the steel structures and completely fill the space within the framework. The self-compacting of concrete is achieved without losing any kind of strength or change in properties. Since its introduction in the later years of 1980’s Self Compacting Concrete(SCC) has brought a revolutionary change in construction industry. Since the production process is much easier than the conventional concrete, it is widely used in mass concreting works, bridge constructions, metro rail constructions. The quality of produced with SCC is much better than the ordinary concrete. SCC mixes always contain a powerful superplasticizer and often use a large quantity of powder materials and/or viscosity-modifying admixtures. The superplasticizer is necessary for producing a highly fluid concrete mix(low yield value). Self-Compacting Concrete is considered to be a concrete which can be placed and compacted under its own self weight with little or no vibration effort and which is at the same time cohesive enough to be handled without any segregation or bleeding. Granite is an igneous rock which is widely used as construction materials in different forms. Granite industry produce lot of waste materials. According to this study the replacement of granite powder for sand and the addition of admixtures to make self-compacting concrete.
SCC is a special type of concrete which can be placed and consolidated under its own weight without any vibration and which at the same time is cohesive enough to be handled without segregation or bleeding. It is a relatively new binder, which can be a sustainable and economical binding material as it is produced from a combination of industrial by-products such as Granite powder replacing 10% of fine aggregate in concrete. The Setting mechanism of the SCC is depended on the polymerization process. Nowadays, the demand for natural sand is very high. This project will discuss the properties of the SCC when the fine aggregate is partially replaced with fine aggregate. It is not only cost effective but, also facilitates the safe disposal of industrial waste, hence protects the valuable land from pollution and ambient curing also save the energy required for oven curing. Greenhouse gas emission potential will be reduced as much as 90 percent when compared with Ordinary Portland Cement.
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